JP2000040041A - Method and system for input-output synchronization for internet protocol version conversion, application and server for network packet receiving processing and internet, and recording, medium storing i/o synchronization program for protocol version conversion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate to switch the version number of a network protocol and further to utilize the communication with a computer whose version number is already shifted and a new application while maintaining the service of the original version. SOLUTION: This input-output synchronizing method processes a connection start request transmitted from an application (version number 6) for transmission by means of an application (version number 6) for reception processing, requests a server (version number 4) for reception to produce input-output ports for communication, obtains a file descriptor of a new socket in the server, produces communication input-output ports on the application (version number 6) for reception processing side, too, registers a file descriptor obtained from the server (version number 4) for reception in information about a new socket, hereafter, checks the existence of receiving datagram to the socket with the registered file descriptor held and performs reception processing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an input / output synchronization method and system for Internet protocol version conversion, an application for network packet reception processing, a server for network packet reception processing, and an input / output synchronization program for Internet protocol version conversion. In particular, when performing communication for transferring data from a transmitting device to a receiving device via a network on a network to which a plurality of computers are connected, the Internet protocol of version number 4 is processed. Both the server for network packet reception processing and the application for network packet reception processing for processing the Internet protocol with version number 6 receive the Internet protocol packet with version number 6. I / O synchronization method and system for Internet protocol version conversion for controlling I / O synchronization to be processed, application for network packet reception processing, server for network packet reception processing, and I / O synchronization program for Internet protocol version conversion Related to a storage medium.

[0002]

2. Description of the Related Art In recent years, there has been an increasing demand for communication of multimedia information in a wide area distributed environment such as the Internet, such as an electronic conference system, a television broadcasting system, and a video-on-demand service. As hardware technology on the end user side, personal computers, mobile computers, IC cards, and the like are becoming smaller and more portable. Here, in order to increase the size of the operating system, avoid the overhead of general-purpose functions, and improve the maintainability of the system, it is possible to start, replace, and expand the Internet standard network protocol control processing as required instead of within the operating system. A system that uses a user-level server has appeared.

[0003]

However, on the other hand, multimedia information such as audio and moving images requires a large amount of information to be processed at a time, and network protocol processing must be performed in order to guarantee its real-time performance. High throughput and low delay are required. For this reason,
After the connection process is completed, data transfer of multimedia information is performed regularly and monotonically, and high-speed network protocol processing and reduction of jitter in processing time are important. There is a need to do.

The present invention has been made in view of the above points, and makes it easy to switch the version number of a network protocol. Further, the present invention enables one computer to process both versions and maintains the service of the original version. An Internet protocol version conversion input / output synchronization method and system, a network packet reception processing application, a network packet reception processing server, and an Internet protocol that enable communication with a computer whose version number has been migrated and use of a new application An object of the present invention is to provide a storage medium storing a version conversion input / output synchronization program.

[0005]

Means for Solving the Problems The present invention (claim 1) provides:
A network packet reception processing server for processing an Internet protocol of version number 4 in communication for transferring data from a transmitting apparatus to a receiving apparatus via a network on a network to which a plurality of computers are connected; In an input / output synchronization method for Internet protocol version conversion when both an Internet protocol packet of version number 6 is received and processed by a network packet reception processing application that processes a protocol, a reception processing application (version number 6)
Processes the connection start request transmitted from the transmission application (version number 6), requests the reception processing server (version number 4) to create a gateway for communication,
The file descriptor of the new socket in the reception processing server is obtained, and the reception processing application (version number 6) also creates a gateway for communication, and the reception processing server (version number 4) is included in the information on the new socket.
The file descriptor obtained from is registered, and thereafter, the presence or absence of the received datagram to the socket is checked with the registered file descriptor, and the receiving process is performed.

FIG. 1 is a diagram illustrating the principle of the present invention. According to the present invention (claim 2), the datagram reception processing device (version number 6) of the receiving application accepts the connection start request (step 21), and the packet reception processing device (version number 6) of the receiving application uses the network. A connection start request for a specific socket is received from the packet transmission processing application (version number 6) (step 22), and a connection start request is received from the packet reception processing device (version number 6) to the datagram reception processing device. (Step 2
3), datagram reception processing device (version number 6)
Receives a request to start connection to a specific socket (step 24), and sends a new communication gateway from the datagram reception processing device (version number 6) to the network packet reception processing server (version number 4). A request for creation is made (step 25), and the network packet reception processing server (version number 4) secures a new gateway for communication and assigns a socket number (step 26), and information on the created socket (version number 4). ) Is held (step 27), and the file descriptor for the created socket is returned to the datagram reception processing device (version number 6) (step 28).
The datagram reception processing device (version number 6) requests the reception processing server (version number 4) to join the name of the new socket (step 29), and the reception processing server (version number 4) assigns the new socket. A name is assigned (step 30), and the datagram receiving device (version number 6) allocates a socket for new communication and assigns a socket number (step 3).
1) The information about the new socket is held (step 32), and the file descriptor for the version number 4 socket created by the receiving server is registered in the datagram receiving device (version number 6) (step 33).

[0007] The present invention (claim 3) relates to a communication for transferring data from a transmitting device to a receiving device via a network on a network connecting a plurality of computers.
When both the network packet reception processing server that processes the version 4 internet protocol and the network packet reception processing application that processes the version 6 internet protocol receive the version 6 internet protocol packet, In the input / output synchronization method for Internet protocol version conversion in the datagram reception processing device, the datagram reception processing device (version number 6) of the receiving application receives a connection start request and receives the request from the packet reception processing device (version number 6). A connection start request is reported to the datagram reception processing device, and a request for connection start for a specific socket is received from the datagram reception processing device (version number 6), Requests the network packet reception processing server (version number 4) to create a new gateway for communication, and obtains a file descriptor to the created socket from the network packet reception processing server (version number 4) Then, it requests the reception processing server (version number 4) to bind the name of the new socket, secures a gateway for new communication, assigns a socket number, holds information on the new socket, and creates a new socket. The file descriptor for the version number 4 socket is registered in the datagram receiving device (version number 6).

[0008] The present invention (claim 4) relates to a communication for transferring data from a transmitting device to a receiving device via a network on a network connecting a plurality of computers.
When both the network packet reception processing server that processes the version 4 internet protocol and the network packet reception processing application that processes the version 6 internet protocol receive the version 6 internet protocol packet, In the input / output synchronization method for Internet protocol version conversion in the packet reception processing server, when the datagram reception processing device (version number 6) of the receiving application requests creation of a new communication gateway, the new communication gateway is requested. , A socket number is allocated, information about the created socket (version number 4) is held, and a file descriptor for the created socket is stored in the datagram reception processing device (version When the datagram reception processing device (version number 6) requests to combine the name with the new socket, the name is assigned to the new socket.

FIG. 2 is a diagram showing the principle of the present invention. According to a fifth aspect of the present invention, in a communication for transferring data from a transmitting device to a receiving device via a network over a network to which a plurality of computers are connected, a network packet receiving a version number 4 Internet protocol is received. The version number 6 is used by both the processing server and the network packet reception processing application that processes the Internet protocol of version number 6.
An internet protocol version conversion input / output synchronization system for receiving Internet protocol packets, comprising: a network packet reception application 1000 comprising a datagram reception processor 100 and a packet reception processor 200; The datagram reception processing device 100 includes a socket creation unit 1 (version number 6) of version number 6 for securing a gateway for communication and assigning a socket number, and for connecting a name to the socket. A socket name assigning means 2 (version number 6), a socket information holding means 3 (version number 6) for holding information on the created socket and responding to the request, A connection start request reception processing means 4 (version number 6) which waits for a subsequent start request, receives the request and changes the state of socket information, and secures a gateway for communication with the network packet reception processing server 2000 of version number 4 Creation request means 5 (version number 4) to obtain a file descriptor by requesting the server 200, and a network packet reception processing server 200 of version number 4
Socket name assignment requesting means 6 (version number 4) for requesting the socket created at 0 to combine a name
And a file identifier registration unit 7 (version number 4) for registering a file descriptor obtained from the network packet reception processing server 2000 of version number 4 in the socket information secured by the socket information holding unit 3.
And a message reception operable inspection requesting means 8 for inquiring of the network packet reception processing server 2000 whether the datagram reception operation is possible and obtaining a result.
(Version number 4) and the packet reception processing device 200
Datagram receiving means 9 for receiving datagrams from
(Version number 6), the packet reception processing device 200 is connected to a packet reception unit 10 (version number 6) that receives a packet addressed to the own computer transmitted from the network packet transmission processing device, and is connected to a specific socket. A connection start request receiving means 11 (version number 6) for receiving the start request and notifying the datagram reception processing device 100, and a datagram assembling means 12 (for connecting the received packet to the reception buffer queue in the corresponding socket information). Version number 6), and when one datagram is completed after assembling the packet, the corresponding file descriptor is obtained from the socket information holding means 3 to indicate that the server 2000 for network packet reception processing can perform the datagram receiving operation. Reportable datagram reception operable reporter 13 (version number 4) and a network packet reception processing server 2000
A socket creation means 14 (version number 4) for securing an exit for communication and assigning a socket number;
A socket name assigning unit 15 (version number 4) for combining a name with the created socket, a socket information holding unit 16 (version number 4) that holds information on the created socket and responds to the request, A request for the presence / absence of a reception packet for a specific file descriptor is received from the packet reception processing application 1000, and the datagram reception operability check means 17 (version number 4) for checking and a specific file descriptor are sent to the network reception processing application 1000. Datagram reception operability reporting means 18 (version number 4) for replying to the presence / absence of a reception packet for the descriptor

The present invention (claim 6) processes an Internet protocol of version number 4 in communication for transferring data from a transmitting device to a receiving device via a network on a network connecting a plurality of computers. A datagram in an Internet protocol version conversion input / output synchronization system that receives and processes an Internet protocol packet of version number 6 by both a server for network packet reception processing and an application for network packet reception processing that processes an internet protocol of version number 6 An application for network packet reception processing comprising a reception processing device and a packet reception processing device,
The datagram reception processor secures a gateway for communication and assigns a socket number of version number 6 (version number 6), and a socket name assigning means for connecting a name to the socket (version number 6). A socket information holding means (version number 6) for holding information on the created socket and responding to the request; waiting for a connection start request from the network packet transmission processing device; Requesting a connection start request reception processing means (version number 6) for changing the state and a network packet reception processing server of version number 4 to secure an entrance for communication;
Socket creation requesting means for obtaining a file descriptor (version number 4), and socket name assignment requesting means (version number 4) for requesting a socket created in the network packet reception processing server of version number 4 to join a name. File identifier registration means (version number 4) for registering a file descriptor obtained from the network packet reception processing server of version number 4 in the socket information secured by the socket information holding means.
A datagram reception operable test requesting means (version number 4) for inquiring of a network packet reception processing server whether a datagram reception operation is possible and obtaining a result, and a datagram for receiving a datagram from the packet reception processing device Reception means (version number 6)
A packet receiving unit (version number 6) for receiving a packet addressed to the own computer transmitted from the network packet transmitting unit;
Connection start request receiving means (version number 6) for receiving a connection start request for a specific socket and notifying the datagram reception processing device, and datagram assembling for coupling the received packet to a reception buffer queue in the corresponding socket information Means (version number 6) and, when one datagram is completed after assembling the packet, obtain the corresponding file descriptor from the socket information holding means, and indicate that the server for network packet reception processing can perform the datagram receiving operation. And datagram reception operability reporting means (version number 4) for notification.

The present invention (claim 7) processes an Internet protocol of version number 4 in communication for transferring data from a transmitting device to a receiving device via a network on a network connecting a plurality of computers. A network packet in an Internet protocol version conversion input / output synchronization system in which both a network packet reception processing server and a network packet reception processing application processing a version number 6 Internet protocol receive and process an Internet protocol packet of version number 6 A server for receiving processing, a socket creating means for securing an exit for communication and assigning a socket number (version number 4), and a socket for connecting a name to the created socket. Name assigning means (version number 4), socket information holding means (version number 4) for holding information on the created socket and responding to the request, and receiving packets for a specific file descriptor from the network packet receiving processing application Datagram reception operability check means (version number 4) for receiving and checking the presence / absence request, and datagram reception operability report means for replying to the network reception processing application whether or not there is a reception packet for a specific file descriptor. (Version number 4).

The present invention (claim 8) processes an Internet protocol of version number 4 in communication for transferring data from a transmitting device to a receiving device via a network on a network connecting a plurality of computers. A datagram in an Internet protocol version conversion input / output synchronization system that receives and processes an Internet protocol packet of version number 6 by both a server for network packet reception processing and an application for network packet reception processing that processes an internet protocol of version number 6 Stores an I / O synchronization program for Internet protocol version conversion installed in a network packet reception processing application consisting of a reception processing unit and a packet reception processing unit A socket creation process (version number 6) of version number 6 for securing a gateway for communication and assigning a socket number, which is mounted on the datagram reception processing device, and for connecting a name to the socket. A socket name assignment process (version number 6), a socket information holding process (version number 6) for holding information on a created socket and responding to a request, and waiting for a connection start request from a network packet transmission processing device. A connection start request reception process (version number 6) for receiving the request and changing the state of the socket information, and requesting a network packet reception processing server of version number 4 to secure an entrance for communication, and to describe the file. Socket creation request process (version number 4) to obtain children A socket name allotment process to request the binding of the name to a socket that was created in the network packet reception processing server version number 4 (version number 4),
A file identifier registration process (version number 4) for registering the file descriptor obtained from the network packet reception processing server of version number 4 in the socket information secured by the socket information holding process, and a datagram receiving operation are possible. A datagram reception operable inspection request process (version number 4) for inquiring of the network packet reception processing server as to whether or not a result is obtained, and a datagram reception process (version number 6) for receiving a datagram from the packet reception processing device
A packet reception process (version number 6) for receiving a packet addressed to the own computer transmitted from the network packet transmission processing device, which is mounted on the packet reception processing device, and receives a connection start request for a specific socket. A connection start request receiving process (version number 6) for notifying the datagram reception processing device, a datagram assembling process (version number 6) for coupling a received packet to a reception buffer queue in the corresponding socket information, When one datagram is completed after assembling, a corresponding file descriptor is obtained from the socket information holding process, and a datagram reception operation possible reporting process for notifying the server for network packet reception processing that the datagram reception operation is enabled is achieved. (Version number 4 With the door.

According to a ninth aspect of the present invention, a version number 4 Internet protocol is processed in communication for transferring data from a transmitting device to a receiving device via a network on a network connecting a plurality of computers. A network packet in an Internet protocol version conversion input / output synchronization system in which both a network packet reception processing server and a network packet reception processing application processing a version number 6 Internet protocol receive and process an Internet protocol packet of version number 6 This is a storage medium storing an Internet protocol version conversion input / output synchronization program mounted on a reception processing server, which secures an exit for communication and assigns a socket number. Socket creation process (version number 4) and the socket name assignment process that binds a name to a socket that was created (the version number 4)
And a socket information holding process (version number 4) for holding information on the created socket and responding to the request, and accepts and inspects a request for the presence or absence of a received packet for a specific file descriptor from a network packet reception processing application. It has a datagram reception operability check process (version number 4) and a datagram reception operability report process (version number 4) for replying to the network reception processing application whether or not there is a reception packet for a specific file descriptor. .

In order to solve the scaling problem associated with the rapid expansion of the Internet, the transition from the Internet standard Internet Protocol version 4 to version 6 has been proposed. Here, as a mechanism for flexible migration of version numbers, a mechanism for conversion, concealment, and coexistence between version numbers is incorporated in the network protocol itself.

The present invention provides a network packet reception processing server for processing an Internet protocol of version number 4 and a network packet reception processing application for processing an Internet protocol of version number 6 in communication for transferring data via a network. When both receive and process the Internet Protocol packet with version number 6, the receiving application (version number 6) processes the connection start request transmitted from the transmitting application (version number 6) (version number 6). Request the server for reception processing to create a gateway for communication, obtain a file descriptor of a new socket in the server (version number 4), and create a gateway for communication on the receiving application side (version number 6). The file descriptor obtained from the server is registered in the information on the new socket (version number 4), and the presence or absence of a received datagram to the socket is checked using the file descriptor (version number 4). (Version number 6).

The present invention is one of the mechanisms for coexistence of a version number, and a server for processing an Internet protocol of version number 6 without changing a server for processing an Internet protocol of version number 4 and an interface to the server. And a server of version number 4 can provide an input / output synchronization mechanism for processing Internet protocol packets of version number 6, making it easy to switch the version number of the network protocol. Therefore, communication with the computer whose version number has been migrated and use of a new application can be performed while maintaining the service of the original version.

[0017]

FIG. 3 shows the configuration of an input / output synchronization system for Internet protocol version conversion according to the present invention. The system shown in the figure includes a network packet transmission processing device 20000 (version number 6) and a network packet reception processing device 10000 (version number 6).

A network packet transmission processing device (version number 6) 20000 shown in FIG.
00, a network packet transmission processing application (version number 6) 3000. The transmission application 3000 includes a datagram packet transmission processing device (version number 6) 300.

A network packet reception processing device (version number 6) 10000 shown in FIG.
00, a network packet reception processing application (version number 6) 1000. The reception application 1000 includes a datagram reception processing device (version number 6) 100 and a packet reception processing device (version number 6) 200.

When transmitting a packet of Internet Protocol version 6 from the network packet transmission processing device (version number 6) 20000 to the reception processing device (version number 6) 10000, the network packet transmission processing server (version number 4) 400
0 is a transmission application (version number 6) 3
In response to the request from 000, the communication gateway is created and the socket information is maintained (version number 4).

Datagram packet transmission processing device (version number 6) 300 in network packet transmission processing application (version number 6) 3000
Performs creation of a gateway for communication, maintenance and management of socket information, division of datagrams, transmission of packets, and the like (version number 6). In response to a request from the reception processing application (version number 6) 1000, the network packet reception processing server (version number 4) 2000 creates a communication entrance / exit, maintains socket information, and determines whether or not there is a received datagram in the socket. Inspect and report (version number 4).

The datagram reception processing device (version number 6) 100 in the network packet reception processing application (version number 6) 1000 creates a gateway for communication, maintains and manages socket information, receives datagrams, and the like ( Version number 6). The packet reception processing device (version number 6) 200 receives the Internet Protocol version 6 packet transmitted from the transmission processing device 20000, assembles it into a datagram, and forms a reception processing server (version number 4) 200
0, and the datagram is received by the datagram reception processor.

FIG. 4 shows the configuration of a network packet reception processing device (version number 6) of the Internet protocol version conversion input / output synchronization system of the present invention. The network packet reception processing device (version number 6) 10000 shown in the figure is a network packet reception processing application (version number 6).
1000, a network packet reception processing server (version number 6) 2000.

The network packet reception processing application (version number 6) 1000 includes a datagram reception processing device (version number 6) 100 and a packet reception processing device (version number 6) 200. Datagram reception processor (version number 6) 1
00 is a socket creation unit (version number 6) 110,
Socket name assignment unit (version number 6) 120,
Socket information holding unit (version number 6) 130, connection start request processing unit (version number 6) 140, socket creation request unit (version number 4) 150, socket name assignment request unit (version number 4) 160, file descriptor registration Section (version number 4) 170, datagram reception operable inspection request section (version number 4) 18
0, composed of a datagram receiving unit (version number 6).

The packet receiving processor (version number 6) 200 includes a network packet receiving section (version number 6) 210, a connection start request receiving section (version number 6), a packet assembling section (version number 6) 230,
Datagram reception operable report section (version number 4)
240. The network packet reception processing server (version number 4) 2000 includes a socket creation unit (version number 4) 310, a socket name assignment unit (version number 4) 320, a socket information holding unit (version number 4) 330, and a datagram reception operation. It is composed of a possible inspection unit (version number 4) 340.

Socket creation unit (version number 6) 11
0 secures a gateway for communication and assigns a socket number. Socket name assignment unit (version number 6) 120
Binds the name to the socket created by the socket creation unit (version number 6) 110. The socket information holding unit (version number 6) 130 holds information on the socket created by the socket creating unit (version number 6) 110, and answers an inquiry to the information.

Connection start request processing unit (version number 6)
140 is a packet reception processing device (version number 6)
It waits for a connection start request from the transmission processing device for the specific socket 200 and receives a report of the connection start request reception from the connection start request receiving unit (version number 6) 220 of the packet reception processing device (version number 6) 200. The socket creation request unit (version number 4) 150 requests the reception processing server 2000 to create a gateway for communication, and obtains a file descriptor for the socket.

The socket name assignment requesting unit (version number 4) 160 requests the reception processing server 2000 to combine the name with the created socket. The file descriptor registration unit (version number 4) 170 registers the file descriptor obtained from the reception processing server 2000 in the socket information held by the socket information holding unit 130.

The datagram reception operable inspection requesting unit (version number 4) 180 is a server 2000 for reception processing.
Inquires about whether a datagram has been received to a specific socket. The datagram receiving unit (version number 6) 190 is a packet assembling unit (version number 6) of the datagram reception processing device (version number 6) 200.
A datagram is received from 230.

The packet receiving unit (version number 6) 2 in the packet reception processing device (version number 6) 200
10 is the version number 6 transmitted from the transmission processing device
Receiving the Internet protocol packet, and sorts the receiving process according to the state of the socket. The connection start request receiving unit (version number 6) 220 notifies the connection start request processing unit 140 in the datagram reception processing device 100 of the reception of the connection start request for the specific socket.

Packet assembler (version number 6) 23
0 assembles the received packet into a datagram. Datagram reception operable report section (version number 4) 24
0 reports the presence / absence of a received datagram to the specific socket to the datagram reception operability check unit (version number 4) 340 of the reception processing server 2000.

Reception processing server (version number 4) 2
000 in 000 (version number 4) 310
Is the receiving application (version number 4) 10
In accordance with the instruction from 00, the gateway of communication is secured, and the file descriptor allocated to the socket is returned. The socket name assigning unit (version number 4) 320 combines the name with the socket created by the socket creating unit 310.

Socket information holding unit (version number 4)
Reference numeral 330 stores information on the socket created by the socket creating unit 310, and answers an inquiry to the information. The datagram reception operability check unit (version number 4) 340 receives an inquiry from the datagram reception processing device 100 about the presence or absence of a reception datagram to a specific socket, and receives a report on the reception datagram from the packet reception processing device 200. .

FIG. 5 is a sequence chart showing known communication which is a premise of the operation of the input / output synchronization system for Internet protocol version conversion of the present invention. Step 101) First, in the network packet transmission processing device (version number 6) 20000, a gateway for communication is secured and a socket number is assigned (version number 6).

Step 102) In the apparatus for network packet reception processing (version number 6) 10000, a gateway for communication is secured and a socket number is assigned (version number 6). Step 103) The name is combined with the created socket (version number 6).

Step 104) Transmission device 20000
Waits for a connection start request (version number 6). Step 105) A connection start request is transmitted from the transmitting device 20000 to a specific socket (version number 6). Step 106) The connection start request is received by the receiving device 10000 (version number 6).

Step 107) Receiving device 10000
Transmits a connection start request confirmation packet to transmission device 20000 (version number 6). Step 108) The Internet Protocol packet of version number 6 is transmitted from the transmitting device 20000 to the receiving device 10000 (version number 6).

Step 109) Receiving device 10000
To receive the packet (version number 6). Step 110) Assemble into a datagram (version number 6). Step 111) The datagram is received (version number 6). Next, the operation of the input / output synchronization system for Internet protocol version conversion performed after the above premise processing will be described.

FIG. 6 is a sequence chart of the operation of the input / output synchronization system for Internet protocol version conversion of the present invention. Step 201) The socket creation unit 110 of the datagram reception processing device (version number 6) 100 of the application for network packet reception processing 1000 creates a gateway for communication and assigns a socket number (version number 6).

Step 202) Socket information holding unit 1
At 30, information about the created socket is retained (version number 6). Step 203) The socket name assignment unit 12
Bind the name to the socket created at 0 (version number 6). Step 204) Wait for a connection start request from the transmission processing device 20000 for the socket (version number 6).

Step 205) Connection start request receiving section 22 of packet reception processing device (version number 6) 200
0, a connection start request packet for a specific socket is received from the transmission processing device 20000 (version number 6). Step 206) The reception of the connection start request is reported to the datagram reception processing device 100 (version number 6).

Step 207) The connection start request is accepted by the connection start request processing unit 140 of the datagram reception processing device 100 (version number 6). Step 208) Next, the datagram reception processing device 1
00, the socket creation request unit 150 requests the reception processing server 2000 to create a socket (version number 4).

Step 209) Reception processing server 20
00 creates a gateway for communication and assigns a socket number (version number 4). Step 210) Information on the socket is held in the socket information holding unit 330 (version number 4). Step 211) The reception processing server 20 is transmitted from the reception processing server 2000 to the datagram reception processing apparatus 100.
The file descriptor of the socket created in 00 is returned (version number 4).

Step 212) Also, the socket name assignment request section 160 of the datagram reception processing device 100
Requests a connection of a name to a socket created in the reception processing server 2000 (version number 4). Step 213) The reception processing server 2000 assigns a name to the socket (version number 4).

Step 214) Further, the socket creating section 110 of the datagram reception processing device 100 secures another gateway for new communication (version number 6). Step 215) The socket information holding unit 130 in the datagram reception processing device 100 holds information on the new socket (version number 6). Step 216) The file descriptor registration unit 170 registers the file descriptor obtained from the reception processing server 2000 in step 211 in the socket information held in step 215 (version number 4).

Step 217) The datagram reception operable test request unit 18 of the datagram reception processing device 100
From 0, the datagram reception operable check unit 340 of the reception processing server 2000 is inquired about the presence / absence of a reception datagram of this socket. Step 218) Datagram reception processing device 100
Enters a state of waiting until a datagram receiving operation becomes possible (version number 4).

Step 219) Reception processing server 20
00 enters a wait state until a datagram receiving operation becomes possible (version number 4). Step 220) The packet receiving section 210 of the packet reception processing device 200 receives a packet for this socket (version number 6). Step 221) The packet assembling section 230 assembles the datagram (version number 6).

Step 222) Reception processing server 20
The datagram receiving operation check unit 340 of the 00 is notified that the datagram has been received (version number 4). Step 223) Finally, the reception processing server 2000
The datagram reception operable check unit 340 notifies the datagram reception operable check request unit 180 of the datagram reception processing device 100 that the datagram for this socket has been received (version number 4).

Step 224) The datagram is received by the datagram receiving section 190 of the datagram receiving processor 100. Further, in the above description, the description has been given based on the configuration of FIGS. 3 and 4. However, the present invention is not limited to this configuration. The present invention can be easily realized by storing it in a disk device connected to a computer to be used, a portable storage medium such as a floppy disk or a CD-ROM, and installing it when implementing the present invention.

The present invention is not limited to the above example, but can be variously modified and applied within the scope of the claims.

[0051]

As described above, according to the present invention, in communication for transferring data from a transmitting device to a receiving device via a network on a network connecting a plurality of computers, the version number 4 is used. When both the network packet reception processing server that processes the Internet protocol and the network packet reception processing application that processes the Internet protocol of version number 6 receive and process the Internet protocol packet of version number 6, the original version number 4 The present invention provides an input / output synchronization mechanism for processing a new version number 6 Internet Protocol packet without changing the server that processes the Internet Protocol of the Internet Protocol and the interface to the server. This makes it easy to switch the version number of the network protocol as a mechanism for coexistence of version numbers, and since one computer can process both versions, it is possible to maintain the service of the original version, and Communication and use of new applications.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is a principle configuration diagram of the present invention.

FIG. 3 is a diagram showing a network packet transmission processing device (version number 6) and a network packet reception processing device (version number 6) of the Internet protocol version conversion input / output synchronization mechanism of the present invention.

FIG. 4 is a diagram showing a network packet reception processing device (version number 6) of the input / output synchronization mechanism for Internet protocol version conversion of the present invention.

FIG. 5 is a sequence chart showing known communication on which the operation of the input / output synchronization mechanism for Internet protocol buffer conversion of the present invention is based.

FIG. 6 is a sequence chart showing the operation of the input / output synchronization mechanism for Internet protocol version conversion of the present invention.

[Explanation of symbols]

1 Socket creation means (version number 6) 2 Socket name assignment means (version number 6) 3 Socket information holding means (version number 6) 4 Connection start request reception processing means (version number 6) 5 Socket creation request means (version number 4) 6) Socket name assignment request means (version number 4) 7 File descriptor registration means (version number 4) 8 Datagram reception operable inspection request means (version number 4) 9 Datagram reception means (version number 6) 10 packet Receiving means (version number 6) 11 Connection start request receiving means (version number 6) 12 Datagram assembling means (version number 6) 13 Datagram reception operable report means (version number 4) 14 Socket creating means (version number 4) 15 Soke Name assignment means (version number 4) 16 socket information holding means (version number 4) 17 datagram reception operability checking means (version number 4) 18 datagram reception operability reporting means (version number 4) 100 datagram reception processing Device (version number 6) 110 Socket creation unit (version number 6) 120 Socket name assignment unit (version number 6) 130 Socket information holding unit (version number 6) 140 Connection start request processing unit (version number 6) 150 Socket creation request Section (version number 4) 160 socket name allocation request section (version number 4) 170 file descriptor registration section (version number 4) 180 datagram reception operable check section (version number 4) 190 datagram reception section (version number) 6) 200 packet reception processing device (version number 6) 210 packet reception unit (version number 6) 220 connection start request reception unit (version number 6) 230 packet assembling unit (version number 6) 240 datagram reception operable report unit ( Version number 4) 300 Datagram packet transmission processing device (version number 6) 310 Socket creation unit (version number 4) 320 Socket name assignment unit (version number 4) 330 Socket information holding unit (version number 4) 340 Datagram reception Operable check unit (version number 4) 1000 Network packet reception processing application (version number 6) 2000 Network packet reception processing server (version number 4) 3000 Network packet transmission Processing application (version number 6) 4000 Network packet transmission processing server (version number 4) 10000 Network packet reception processing device (version number 6) 20000 Network packet transmission processing device (version number 6)

Continuation of the front page F term (reference) 5B089 AA03 AA22 AF06 CA18 CB03 CB11 CC11 CC20 5K030 GA08 GA11 HA08 HB18 HC14 JT06 LB15 5K034 AA17 EE11 FF01 HH61 (54) [Title of the invention] I / O synchronization method for Internet protocol version conversion and System and network packet reception processing application, network packet reception processing server, and storage medium storing Internet protocol version conversion input / output synchronization program

Claims (9)

[Claims] 1. A network packet reception processing server for processing an Internet protocol of version number 4 in communication for transferring data from a transmitting device to a receiving device via a network on a network connecting a plurality of computers, In the input / output synchronization method for Internet protocol version conversion in the case where the Internet protocol packet of version number 6 is received and processed by both the application for network packet reception processing for processing the Internet protocol of version number 6, the reception processing application ( Version number 6)
Processes the connection start request transmitted from the transmission application (version number 6), requests the reception processing server (version number 4) to create a gateway for communication, and issues a new socket in the reception processing server. , A communication gateway is also created on the reception processing application (version number 6) side, and the file obtained from the reception processing server (version number 4) in the information on the new socket. Registering a descriptor, and thereafter, checking presence / absence of a received datagram to the socket with the registered file descriptor, and performing a receiving process. Method. 2. The datagram reception processing device (version number 6) of the reception application receives the connection start request. The packet reception processing device (version number 6) of the reception application uses a network packet transmission processing application. Receiving a connection start request for a specific socket from (version number 6), reporting the reception of the connection start request from the packet reception processing device (version number 6) to a datagram reception processing device, A request for initiating connection to a specific socket is received by the reception processing device (version number 6), and the datagram reception processing device (version number 6) transmits a new request to the network packet reception processing server (version number 4). Creating a gateway for communication The server for network packet reception processing (version number 4) secures a new gateway for communication and assigns a socket number, holds information on the created socket (version number 4), and Replying a file descriptor to a socket to the datagram reception processing device (version number 6), the datagram reception processing device (version number 6)
Requests the reception processing server (version number 4) to join a name to the new socket, assigns a name to the new socket in the reception processing server (version number 4), and sends the datagram reception device (version number 6). )
A gateway for a new communication is secured, a socket number is allocated, information about the new socket is held, and a file descriptor for the version number 4 socket created by the receiving server is stored in the datagram receiving device (version number 6). 2. The method for synchronizing Internet protocol bunions according to claim 1, wherein the synchronization is performed. 3. A network packet reception processing server for processing an Internet protocol of version number 4 in communication for transferring data from a transmission device to a reception device via a network on a network to which a plurality of computers are connected; In an input / output synchronization method for Internet protocol version conversion in a data program reception processing device when receiving an Internet protocol packet of version number 6 with both a network packet reception processing application processing an internet protocol of version number 6 The datagram reception processing device (version number 6) of the reception application receives the connection start request, and receives the connection from the packet reception processing device (version number 6). Receiving a report of the operation request, requesting the network packet reception processing server (version number 4) to create a new gateway for communication, and the network packet reception processing server (version number 4) Get the file descriptor for the new socket, request the receiving server (version number 4) to bind the name for the new socket, secure a new gateway for communication, assign a socket number, and get information about the new socket. And a file descriptor for the socket of version number 4 created by the receiving server is registered in the datagram receiving device (version number 6). 4. A network packet reception processing server for processing an Internet protocol of version number 4 in communication for transferring data from a transmitting device to a receiving device via a network on a network connecting a plurality of computers, and In the case of receiving the Internet protocol packet of version number 6 with both the network packet reception processing application processing the Internet protocol of number 6,
In the input / output synchronization method for Internet protocol version conversion in the packet reception processing server, when the datagram reception processing device (version number 6) of the reception application requests creation of a new communication gateway, Information on the created socket (version number 4)
And returns a file descriptor to the created socket to the datagram reception processing device (version number 6), and the datagram reception processing device (version number 6)
Receiving a request for combining a name with a new socket from the Internet, assigning a name to the new socket. 5. A network packet reception processing server for processing an Internet protocol of version number 4 in communication for transferring data from a transmission device to a reception device via a network on a network connecting a plurality of computers. An internet protocol version conversion input / output synchronization system for receiving and processing an internet protocol packet having a version number 6 with both a network packet reception processing application for processing an internet protocol having a version number 6 and a datagram reception processing device and a packet A network packet reception processing application configured by a reception processing device; and a network packet reception processing server configured by the datagram reception processing device; Means for creating a version number 6 socket which secures an entrance for a socket and assigns a socket number; a socket name assigning means for associating a name with the socket; and a socket which holds information on the created socket and responds to the request. Information holding means, a connection start request reception processing means for waiting for a connection start request from a network packet transmission processing device, receiving the request and changing the state of socket information, and a network packet reception processing server of version number 4 Request to secure a gateway for communication and obtain a file descriptor, and a socket name assignment for requesting to bind a name to a socket created in the network packet reception processing server of version number 4 Request means, and the network File identifier registration means for registering the file descriptor obtained from the packet reception processing server in the socket information secured by the socket information holding means; and the network packet reception processing for determining whether a message accepting operation is possible. A datagram reception operable inspection requesting unit for obtaining a result by inquiring of a server for data processing; and a datagram receiving unit for receiving a datagram from the packet reception processing device, wherein the packet reception processing device comprises: A packet receiving unit for receiving a packet addressed to the own computer transmitted from the device; a connection start request receiving unit for receiving a connection start request for a specific socket and notifying the datagram reception processing device; Connects to the receive buffer queue in the socket information. Datagram assembling means, and when one datagram is completed after assembling the packet, obtains the corresponding file descriptor from the socket information holding means, and informs the network packet reception processing server that the datagram receiving operation has become possible. A datagram reception operability report unit for notifying, the network packet reception processing server secures an exit for communication, and a socket creation unit for allocating a socket number; and combining the name with the created socket. Means for assigning a socket name, a socket information holding means for holding information on a created socket and responding to a request, and accepting a request for the presence or absence of a received packet for a specific file descriptor from the network packet reception processing application. Data graph to inspect For a network reception operable check means, and for the network reception processing application,
An input / output synchronization system for Internet protocol version conversion, comprising: a datagram reception operable report means for replying to the presence / absence of a reception packet for a specific file descriptor. 6. A network packet reception processing server for processing an Internet protocol of version number 4 in communication for transferring data from a transmitting device to a receiving device via a network on a network connecting a plurality of computers. Datagram reception processing device and packet reception processing in an Internet protocol version conversion input / output synchronization system that receives and processes version 6 Internet protocol packets with both a network packet reception processing application that processes version 6 Internet protocol An application for network packet reception processing comprising a device, wherein the datagram reception processing device secures a gateway for communication and assigns a socket number to a version. A socket creating means of number 6, a socket name assigning means for connecting a name to the socket, a socket information holding means for holding information about the created socket and responding to the request, and a network packet transmission processing device. A connection start request receiving means for receiving the request and changing the state of the socket information upon receiving the request; and requesting a network packet reception processing server of version number 4 to secure a gateway for communication, and Socket creation requesting means for obtaining a descriptor; socket name assignment requesting means for requesting a socket created in the network packet reception processing server of version number 4 to combine a name; and the network packet of version number 4 The file descriptor obtained from the reception processing server is File identifier registration means for registering in the socket information secured by the socket information holding means, and datagram reception operation availability check for inquiring of the network packet reception processing server whether datagram reception operation is possible and obtaining a result. Requesting means; and datagram receiving means for receiving a datagram from the packet reception processing device, wherein the packet reception processing device receives a packet addressed to its own computer transmitted from the network packet transmission processing device. Receiving means, connection start request receiving means for receiving a connection start request for a specific socket and notifying the datagram reception processing device, and datagram assembling means for coupling the received packet to a reception buffer queue in the corresponding socket information And after packet assembly 1 When the datagram is completed, the corresponding file descriptor is obtained from the socket information holding means, and the datagram reception operability report means for notifying to the network packet reception processing server that the datagram reception operation is enabled is provided. An application for network packet reception processing characterized by having. 7. A network packet reception processing server for processing an Internet protocol of version number 4 in communication for transferring data from a transmitting device to a receiving device via a network on a network connecting a plurality of computers. A network packet reception processing server in an Internet protocol version conversion input / output synchronization system that receives and processes a version number 6 Internet protocol packet with both a network packet reception processing application processing a version number 6 Internet protocol. A socket creation means for securing an exit for communication and assigning a socket number; a socket name assignment means for binding a name to the created socket; A socket information holding unit for holding information and responding to the request; a datagram reception operability checking unit for receiving and checking a request for the presence or absence of a received packet for a specific file descriptor from the network packet reception processing application; For the network reception processing application,
A network packet reception processing server, comprising: a datagram reception operability report unit for replying to the presence / absence of a reception packet for a specific file descriptor. 8. A network packet reception processing server for processing an Internet protocol of version number 4 in communication for transferring data from a transmission device to a reception device via a network on a network connecting a plurality of computers. Datagram reception processing device and packet reception processing in an Internet protocol version conversion input / output synchronization system that receives and processes version 6 Internet protocol packets with both a network packet reception processing application that processes version 6 Internet protocol A storage medium storing an input / output synchronization program for Internet protocol version conversion mounted on an application for network packet reception processing configured from a device, A socket creation process of version number 6 for securing a gateway for communication and assigning a socket number, which is mounted on the datagram reception processing device; and a socket name assignment process for binding a name to the socket. A socket information holding process for holding information about a socket and responding to a request, and a connection start request receiving process for waiting for a connection start request from a network packet transmission processing device, receiving the request, and changing the state of the socket information A socket creation request process for requesting the network packet reception processing server of version number 4 to secure a gateway for communication to obtain a file descriptor, and a socket created in the network packet reception processing server of version number 4. To request the name to be A socket name assignment request process, a file identifier registration process for registering the file descriptor obtained from the network packet reception processing server having the version number 4 in the socket information secured by the socket information holding process, A message reception operable test requesting process for inquiring of the network packet reception processing server whether a datagram reception operation is possible and obtaining a result, and a datagram reception process for receiving a datagram from the packet reception processing device. A packet reception process mounted on the packet reception processing device, for receiving a packet addressed to the own computer transmitted from the network packet transmission processing device, and receiving a connection start request for a specific socket; A connection start request receiving process to be notified, a datagram assembling process of coupling the received packet to the receiving buffer queue in the corresponding socket information, and a socket information holding process after the packet assembling completes one datagram. A datagram reception operable report process for obtaining a descriptor and notifying the network packet reception processing server that a datagram reception operation is enabled, and storing a network packet reception processing program. Storage media. 9. A network packet reception processing server for processing a version number 4 Internet protocol in communication for transferring data from a transmission device to a reception device via a network on a network connecting a plurality of computers. It is mounted on a network packet reception processing server in an Internet protocol version conversion input / output synchronization system that receives and processes an Internet protocol packet of version number 6 with both a network packet reception processing application that processes an Internet protocol of version number 6. A storage medium that stores an I / O synchronization program for Internet protocol version conversion, which secures an exit for communication and assigns a socket number. A socket name assigning process for binding a name to the created socket, a socket information holding process for holding information on the created socket and responding to a request, and a specific file description from the network packet reception processing application. A datagram reception operability check process for receiving and checking a request for the presence or absence of a received packet for a child, and for the network reception processing application,
A datagram reception operable report process for replying to the presence / absence of a reception packet for a specific file descriptor. An input / output synchronization program for Internet protocol version conversion, comprising: